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2 years ago

1. Determine how many atoms are present in 2.5 moles of Silicon? (15.05 x 1023 atoms) X

Chemistry

2 answers:

Aleksandr-060686 [28]2 years ago

7 0

Answer:

I DONT KNOW SORRY

Explanation:

masha68 [24]2 years ago

7 0

To solve this, we have to turn the moles into atoms:

2.5 moles/1 x 6.022x10^23 atoms/1 mole = 15.05 x 10^23 atoms

Answer: 15.05 x 10^23 atoms

I hope this helps!

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What are the Lewis definitions of an acid and a base? In what way are Bronsted definitions? they more general than the In terms

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Explanation:

Lewis definition of Acids and Bases

Chemical species which are capable of accepting electron pairs or donating protons are called Lewis acid.

Chemical species which are capable of donating electron pairs or accepting protons are called Lewis base.

Bronsted definition of acids and bases

Chemical species which are capable of donating H+ are called Bronsted acids.

Chemical species which are capable of accepting H+ are called Bronsted bases.

So all Bronsted acids are Lewis acids but all Lewis acids are not Bronsted acids.

For a chemical species to behave as Lewis acid, they must have:

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Vacant d-orbitals

For example, in BF3, octet of boron is incomplete, so it can accept a pair of electron and behaves as Lewis acid.

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3 years ago

Explain why fluorine and chlorine are in the same group of the periodic table.

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Answer:

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3 years ago

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3 years ago

Select the equations below that represent physical changes.

Ierofanga [76]

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∴ Part A- 2 H2O(l) → 2 H2(g) + O2(g)

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No diagram is given therefore I cannot answer however, use this for reference.
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